Chances are high that you’ve stumbled upon some sort of ero guro in your time on the internet. Ero guro nonsense (or ero guro nansensu) spans a wide variety of Japanese media, from theater and manga to film and music.

An undefined group of women mangaka, the Year 24 group revolutionized shojo manga in the 1970s. Their works are considered manga classics, with many focusing on themes of politics, philosophical issues, sexuality, and gender.